Restrict the mouse posisition

Archived Forums Questions & Answers
1

Hey guys,

I was wondering how I would restrict how far the mouse can go on the screen... I was thinking about using mathf.clamp, but I don't really know how... Anyway, if you guys can help, that would be great!

//Written By/For Gibson Bethke
var crosshairTexture : Texture2D;

function Update () {
    Screen.showCursor = false;
}

function OnGUI () {
    var mousePos = Event.current.mousePosition;
    GUI.DrawTexture( Rect( mousePos.x - (crosshairTexture.width/2),
                           mousePos.y - (crosshairTexture.height/2),
                           crosshairTexture.width,
                           crosshairTexture.height), crosshairTexture);
}

Just incase I wasn't clear, I want the mouse to stop before it hits the sides of the screen, much like this (but with the mouse):

//Written By/For Gibson Bethke
var normalMoveSpeed : float = 3.125;
var topMoveSpeed : float = 6.25;
var currentSpeed : float = 3.125;

function Update () {
    var down = Vector3(0, -1, 0);

        if(Input.GetButton("Jump")) {
            currentSpeed = topMoveSpeed;
        }else{
            currentSpeed = normalMoveSpeed;
        }
            if(Input.GetButton("W")) {
                transform.Translate(Vector3.up * currentSpeed);
        }
            if(Input.GetButton("A")) {
                transform.Translate(Vector3.left * currentSpeed);
        }
            if(Input.GetButton("S")) {
                transform.Translate(Vector3.down * currentSpeed);
        }
            if(Input.GetButton("D")) {
                transform.Translate(Vector3.right * currentSpeed);
        }
         var xMove : float = Input.GetAxis("Horizontal") * Time.deltaTime * 20;
            transform.Translate(Vector3(xMove,0,0));
            transform.position.x = Mathf.Clamp(transform.position.x, 300, 1700); 

        var zMove : float = Input.GetAxis("Vertical") * Time.deltaTime * 20;
            transform.Translate(Vector3(zMove,0,0));
            transform.position.z = Mathf.Clamp(transform.position.z, 300, 1700);
}

-Thanks so much for your help!

P.s. Both the scripts work, the top one is what I have so far

2

Set minX, maxX, minY, maxY to the values you want it to clamp between.

mousePos.x = Mathf.Clamp(mousePos.x, minX, maxX);
mousePos.y = Mathf.Clamp(mousePos.y, minY, maxY);


function OnGUI () 
{
    var mousePos = Event.current.mousePosition;

    mousePos.x = Mathf.Clamp(mousePos.x, minX, maxX);
    mousePos.y = Mathf.Clamp(mousePos.y, minY, maxY);

    GUI.DrawTexture( Rect( mousePos.x - (crosshairTexture.width/2),
                           mousePos.y - (crosshairTexture.height/2),
                           crosshairTexture.width,
                           crosshairTexture.height), crosshairTexture);
}
3

easy way I use to restrict cursor to a distance from edges of screen: use the newMousePos as your cursor value.

  public float mousePosX_min;
  public float mousePosX_max;
  public float mousePosY_min;
  public float mousePosY_max;

void Update()
{
      float mousePosX = Mathf.Clamp(Input.mousePosition.x,mousePosX_min, mousePosX_max); 
      float mousePosY = Mathf.Clamp(Input.mousePosition.y,mousePosY_min, mousePosY_max); 
      newMousePos = new Vector2(mousePosX,mousePosY);
}